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P. E. WIBERG SAFETY PIN MACHINE.

APPLICATION FILED JUNE 25. I909. RENEWED NOV. 5,I9I5.

1,195,121. Patented Aug. 15, 1916.

3 SHEETS-SHEET I.

Pe er- E. Wiloerg P. E. WIBERG.

SAFETY PIN MACHINE.

APPLICATION FILED JUNE 25.1909. RENEWED NOV.

5 1915. 1,195,121. Patented Aug. 15, 1916.

3 SHEETS-SHEET 2.

Fig". 2

PETER E.'WIBERG, 0F GLEN RIDGE, NEW JERSEY, ASSIGNOB 0F ONE-HALF T0 LUDWIG LITTAUER, OF YONKERS, NEW YORK, AND ONE-HALF TO AXEL V. BEEKEN, OF

BLOOMFIELD, NEW JERSEY.

SAFETY-PIN MACHINE.

Specification of Letters Patent.

Patented Aug. 15, 1916.

Application filed June 25, 1909, Serial No. 504,215. Renewed November 5, 1915. Serial No. 59,890.

To all whom it may concern:

Be it known that I, PETER E. WIBEnG, a citizen of the United States, and a resident of Glen Ridge, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Safety- Pin Machines, of which the following is a specification.

As is well known in the art a safety pm usually consists of three parts, a pin body, a head, and a center or filler. The pins are made by inserting the center in the head and securing the head with the center therein to the end of the pin body. These parts .are usually secured together by clamping .and to better secure the parts the pm body do away with this handling of the centers and the heads and to combine these parts by automatic means. Prior to my invention the custom has been to make the different parts of the pin on separate machines, afterward assembling these parts on still another machine.

Another object of the invention is to simplify these operations somewhat and I accomplish this object by making certain of the parts on the same machine in which the parts are assembled.

One feature of the invention consists in providing mechanism for assembling the various parts, together with means for simultaneously feeding the different parts to the assembling mechanism in proper order to be acted upon by said mechanism. The assembling mechanism may vary as to form but it preferably consists of a reciprocating punch which cooperates with a stationary anvil. The feeding means of the various pin parts may also vary. Preferably, however, I employ the revolving hopper type of feed for the heads, together with a feed slide for pushing the heads in under the assembling punch, and the feed for the pin bodies preferably consists of a pair of rods provided with spiral feed grooves. The centers are preferably fed by means of a reciprocating slide. These various feeding dev ces are designed so as to cause the different pm parts to meet simultaneously or substantially so at a common point, the coincident parts being then acted upon by the assembling punchv to unite the parts to form the complete safety pin. There may, however, be some variation in the rate of feed of the parts, for instance when the pin body arrives'in position under the assembling punch, the head may be pushed forward over the end of the pin body and the center may then be inserted in the head, the assembling punch then acting upon the parts to secure them in proper relation. I do not wish to confine myself to this particular rate of sequence, however, as the parts may be fed so as to unite all at the same instant, or the center may be inserted n the head before the head is applied to the pin body.

The blanks which form the centers, if desired, may be first punched and then fed to the machine but I prefer to form these blanks in the same machine.

Another feature of my invention consists of means for holding the associated end parts when in position to be acted upon by the assembling punch. For the purpose of holding the' parts in relation I prefer to employ the movable guide and I accordingly actuate said guide so as to engage and hold the pin parts while such parts are in position under the assembling punch.

with such a machine, I would have it understood that it is not limited to this use and may be adapted to difierent uses wherever found practicable.

In the accompanying drawings is illustrated a preferred embodiment of the invention but I would have it understood that various changes may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

In the said drawings: Figure 1 is a plan view of a safety pin machine embodying my invention, the revolving hopper for the head blanks being shown in section. For the sake of clearness, the rolls for feeding the blank material are omitted in this view. Fig. 1 is a view of the pin made by the machine. Fig. 1" is a sectional view of the lower end of the holder 10. Fig. 2 is a cross-sectional view of the machine, taken on the line 22 of Fig. 1, revolving hopper in this view also being shown in section. Fig. 3 is a detached view of the supporting head which carries the punch mechanisms, together with the feeding device for the strip of materiahfrom which the center blanks are cut. Fig. 4 is a plan view of a die face of a reciprocatory assembling punch. Fig. 5 is a cross-sectional view of the end of the assembling punch, taken on the line 5-5 of Fig. 4. Fig. 6 is another sectional view of a die face, taken on the line 66 of Fig. 4. Fig. 7 is a side view of the supporting head showing the blank ing punch and the movable guide which receives the blank therefrom. Fig. 8 is a sectional view of the supporting head showing the punch and the anvil cooperating therewith. Fig. 9 is. another sectional view of the head taken on the line 9-9 of Fig. 7. Figs. 10 and 11 are detail views partly in section of the blanking punch and guide. Fig. 12 is an end View of the blanking punch. Fig. 13 is a detail view illustrating the manner in which the blanks are cut from the strip of material. Fig. 14 is a detail view partly in section of the movable guide showing the ejector partially withdrawn therefrom. Fig. 15 is a broken detail view of the ejector. Fig. 16 is a detail view with parts broken away and in section illustrating the manner of assembling the parts of the pin.

Similar reference characters denote like parts throughout the several views.

In the practical embodiment of my invention the component parts of the safety pin are fed so as to meet in proper relation at a common point at which point the associated parts are acted upon by an assembling mechanism preferably in the form of a punch and united in a single structure.

The assembling mechanism preferably consists of a reciprocating punch or hammer 1 which cooperates with a stationary anvil 2. This punch is reciprocated by suitable means such as a rocker-arm 3 on the rockshaft 4., said shaft being actuated by the cam face 5 on the cam disk 6, motion being imparted to the rockshaft by means of the friction roll 7 and the rocker-arm 8. The heads 9 of the pins may be fed to the dies by any suitable means, such as the holder 10 and the slide 11. This feed slide may be reciprocated to the feed heads individually to the assembling punch by means of the cam roll 12 which engages in the cam slot 13 of the cam disk 6. The holder for the heads is of the well known revolving hopper type in which the blanks are contained in a rotatable hopper 14, the blanks as the hopper revolves being caught upon the lateral portion 15 of the holder, sliding down the holder in a position to be engaged by the feeding slide 11, as shown in Fig. 2. The lower portion of the holder is somewhat wedge-shaped as indicated at 16 in r Fig. 1, so as to engage the corresponding wedge-shaped openings in the side of the heads, thereby adjusting the heads circumferentially so that they will occupy the correct position with respect to the feeding slide 11. The lower end of the holder 10 terminates just short of the table 17 so as not to interfere with the action of the feed slide.

The pin bodies or points are fed to the as sembling mechanism preferably by means of the usual spiral conveyer rods 18 having a spiral thread which feeds the pin bodies forward. The rate of progress of the conveyer threads is less at a point under the assembling punch (see Figs. 1 and 3) so as to allow the pin bodies to remain stationary or practically so while being acted upon by the assembling punch. The spiral conveyer rods and the shaft 19 on which the various cams are mounted are preferably interconnected as by means of suitable gears 20 and the revolving hopper may be driven by conventi'onal bevel gearing 21.

The center blanks may, if desired, be formed on a different machine and then be fed to the assembling machine. I prefer however to make the center blanks right on the assembling machine. The mechanism for forming these blanks consists preferably of a reciprocating punch member 22 having a series of prongs or projections 23 cooperating with their respective seats or openings 24 in the anvil 25. The anvil is provided with a passage 26 therethrough through which a strip of material 27 from which the blanks are cut, is fed. The strip of material is given an intermittent feeding motion by suitable means such as the feed rolls 28, intermittent motion being communicated to said rolls by means of a ratchet 29 on the shaft of one of the rolls which is engaged by the pawl 30 on the lever arm 31. This lever arm swings on a center 75, concentric with one of the feed rolls, and it is operated from the rockshaft 4: by a rockerarm 32 so that as the rockshaft is actuated the strip of material is fed forward to the blanking punch. The connection between the rocker arm 32 and the lever arm 31 is shown in the drawing asan arm 7 6, which, as shown in Fig. 2, has its one end rigidly secured to the rocker arm 32 by a stud 77, and carries on its opposite end a pin 78 on which the upper end of lever arm 31 is pivoted. The lever arm 31 is slotted in its lower end, as shown in Fig. 3, to pass over the center 75, this slot being necessary to allow for movement about the different centers. The punch is further preferably provided with a cutter blade 33 for severing the blanks.

It will thus beapparent that upon each reciprocation of the punch one blank is shaped out and the preceding blank is cut oil". The center blanks 34 have a somewhat rounded head and corresppnd in general outline to the shape of the head blanks but are slightly smaller so as to fit within the heads. The manner. idwhich the centers are blanked out will be understood from Figs. 12 and 13. Fig. 12 illustrates the face of the blanking punch. In the present case this punch is shown as provided with three prongs, two of which punch notches in the opposite edges of the strip of material and the third one of which forms an opening in thehead portion of the center. The formation of this blanking punch might vary to suit different requirements but in the present case it is shown provided with a triangular prong 35, a substantially elliptical prong 36, and asemi-elliptical prong 37. The prongs 35 and 36 are staggered With relation to each other, the former acting to cut a V-shaped notch 38in one edge of the strip of material, while the latter forms a curved recess 39 in the opposite edge of the strip. The third prong 37 serves to punch an opening 40 near the head or forward end of the center blank.

The recesses on the opposite edges of the strip thus alternate in position, as shown in Fig. 13, and the cutter blade severs the strip along the center line of the V-shaped notches.

Figs. 9, 10 and 11 illustrate'successive positions of the punch. The blanking punch may be conveniently reciprocated by means of a lever 41 pivoted on the center 12, one end of the lever engaging in a slot 4-3 in the plunger and the offset end of the lever having a cam roll 44 engaging a cam disk 45.

In order to convey the center from the blanking punch to the assembling p'unch I employ conveying means preferably in the form of a guide &6 pivoted on the center 47, this guide having a longitudinal passageway 48 therein which is open in the side at the point 49 to aline with the passage 26 in the anvil. This guide is reciprocated by means of a-lever 50 connected with the forward end of the guide by a link 51, the lever being pivoted at the point 52 and having at its rear end a cam roll 53 in engagement with the periphery of the cam disk 6. For the purpose of feeding the blanks from the guide to the assembling punch I prefer to employ an ejector in the shape of an ejector rod 51 having an ejector head 55 to engage the blank. The ejector is actuated at the proper times by suitable means such as the cam slot 56 (see Figs. 1 and 2) in the disk 57 which imparts a reciprocating movement to the lever 58 by means of the cam roll 59,

the lever in turn being connected as by means of a small rocker-arm 60 with the swinging link 61 which link is in turn connected to the ejector by means of a connecting link 62.

The preferred operation of the machine is as follows: The points or pin bodies 63 are placed on the spiral conveyors in the manner shown in Fig. l. The heads or blunt ends of the pin bodies are formed with an angular bend or twist 6 1 which results in the forming of a secure joint between the head and pin body. Preferably the pin bodies are provided with the locking bend when they are placed in the machine. The pin bodies are fed by the spiral conveyers to the assembling punch so that the angular head portions of the points will pass directly under the assembling punch and by reason of the change in the pitch of the spiral conveyers the points are caused to dwell or travel more slowly as they pass under the assembling punch. At each stroke of the blanking punch a center blank is cut from of the strip causes the blanks thus formed to be pushed through the opening 49 on into the longitudinal passage-way 48 in the movable guide. The movable guide is then shifted by the lever 50 and the connections before described, to bring the mouth of the guide in alinement with the assembling punch and the ejector is then actuated to eject a center blank from the guide. While this is taking place, the reciprocating slide 11 has fed one of the head blanks in under the assembling punch. The guide 46 is preferably reciprocated downward to such an extent as to engage the pin body and clamp it against the lip or flange 65 in the manner shown in Fig. 16. This clamping action bends the angular head portion of the pin body slightly upward so that as the head is fed forward by the reciprocating feed slide it will readily pass over the end of the pin body. The ejector is preferably actuated while the pin body is thus clamped by the movable guide just after or simultaneously with the feeding movement of the head. In this way the three parts of the safety pin are associated simultaneously or practically so, in position to be acted upon by the assembling punch. The assembling punch then descends upon the associated parts and the parts are securely clenched together in proper form. The assembling punch has a die face of proper configuration to accomplish this clamping action, or, if desired, this die face may be carried by the anvil 2. or part by the anvil and part by the punch. In the preferred form, however, the anvil has a plane surface and the punch is the die member. As shown in Figs. 3, 4, 5 and 6, this die preferably has a sharpened rim 67 the stripof materiaLandthe feeding motion catch for the sharpened end of the pin.

What is claimed, is: 1. In a safety pin machine, the combination with die mechanism for assembling the points, centers, and heads of the pins, of means for feeding the points, centers, and heads in proper relation to be acted upon by the die mechanism.

2. In a safety pin machine, the combination with die mechanism for assembling the centers, points, and heads of the pins, of

means for simultaneously feeding the points,

centers, and heads to the die mechanism.

3. In a safety pin machine, the combination with die mechanism for assembling the points, centers, and heads of the pins, of means for simultaneously feeding the points, centers, and heads to the die mechanism adapted to arrange such parts in proper relation to be acted upon by the die mechaniSm.

4. In a safety pin machine, means for forming the centers of the pins, die mechanism for uniting the points, centers, and heads of the pins, and means for feeding the points, centers, and heads so as to be simultaneously acted upon by the die mechanism.

5. In a safety pin machine, die mechanism for uniting the heads, centers, and points of the pins, means for feeding the points to the die mechanism, and means for feeding the heads and centers to the die mechanism so as to meet the points.

6. A safety pin machine comprising means for collecting the points, heads, and centers of the pins at a common point, means for uniting the assembled parts at said point and means for holding the parts while being united.

7. A safety pin machine comprising means for simultaneously or substantially so engaging the point, center, and head of the pins in their proper relation, and means for securing said parts when so related.

8. In a safety pin machine, means for placing the heads over the ends of the points and inserting the centers into the heads of the pins, and means for securing the parts in such relation 9. In a safety pin machine, the combination'of a punch for forming center blanks from a strip of material, die mechanism for uniting the points, centers and heads of the pins, means for feeding the center blanks from the punch to the die mechanism, and means for assembling the points, heads and centers in relation to be acted upon by the die mechanism.

10. In a safety pin machine, the combination with means for assembling the different parts of the pins,'of means for feeding the pin bodies to the assembling means, means for feeding the heads to the assembling means in a direction at right angles to the pin bodies, and means for feeding the centers to the assembling means in a plane corresponding to the plane of movement of the heads.

11. In a safety pin machine, the combination with means for assembling the parts of the pins, of means for feeding the pin bodies to said assembling means, means for feeding the heads to the assembling means in a direction at right angles to the movement of the pin bodies so as to engage the ends of the pin bodies, and means for feeding the centers to the assembling means in' a direction opposite to the feeding motion of the heads so as to thereby coincide with the said heads.

12. In a machine of the character described, the combination with assembling mechanism, of means for feeding the pin bodies to the assembling mechanism, means for feeding the heads over the ends of the pin bodies, and means for feeding the centers into the heads.

13. In a machine of the character described, the combination with assembling mechanism, of means for feeding the pin bodies to the assembling mechanism, means for feeding the heads over the ends of the pin bodies, means for feeding the centers into the heads, and means for holding the pin bodies while the heads are being fed over the same.

14;. In a safety pin machine, the combination with an assembling punch, of means for feeding the pin bodies, heads, and centers to the assembling punch, and means for holding said parts while about to be acted upon by the assembling punch.

15. In a safety pin machine, the combination with a blanking punch for forming centers and an assembling punch, of means for directing the centers from the blanking punch to the assembling punch, means for simultaneously feeding the points and heads of the pin to the assembling punch, and means for clamping the pin parts while being acted upon by the assembling punch.

16. In a machine of the character described, an assembling punch, means for feeding the pin parts to the assembling punch, a guide for directing certain of the pin parts to the assembling punch, and means for operating the guide to cause it to clamp the pin parts while being acted upon by the assembling punch.

17. In a safety pin machine, a hopper for the heads, an assembling punch, means for feeding the points to the assembling punch and permitting the points to dwell in position under the assembling punch, means for feeding the heads from the hopper t0 the assembling punch, a center blank forming punch, means for feeding blank material to the blank forming punch, and means for directing the centers from the blank forming punch to the assembling punch.

18. In a safety pin machine, a hopper for the heads, an assembling punch, means for feeding the points to the assembling punch and permitting the points to dwell in position under the assembling punch, means for feeding the heads from the hopper to the assembling punch, a center blank forming punch, means feeding blank material to the blank forming punch, means for directing the centers from the blank forming punch to the assembling punch, and means for clamping the pin parts when in position to be acted upon by the assembling punch.

19. In a safety pin machine, a punch for producing flat center blanks from a strip of material, means for feeding a flat strip of material to the punch, die mechanism, and a guide adapted to receive the center blanks from the punch and direct them to the die mechanism.

20. In a safety pin machine, a punch for producing flat center blanks from a strip of material, die mechanism, a guide adapted to receive the center blanks from the punch and direct them to the die mechanism, means for feeding points to the die mechanism, and means for feeding heads to the die mechanism to engage over the points and receive the centers within them.

21. In a safety pin machine, die mechanism, a punch for simultaneously punching and severing a strip of material into center blanks, a guide receiving the center blanks from the punch, means for feeding points to the die mechanism, means for feeding heads over the ends of the points, and an ejector for ejecting the centers fromthe guide into i the heads.

Signed at New York city in the county of New York and State of New York this 17th day of June A. D. 1909.

PETER E. WIBERG.

Witnesses:

PHILIP S. MCLEAN, AxaL V. BEEKEN. 

